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  • Title: [A study of the motor and sensory cortex using functional magnetic resonance: tasks of active and passive movement].
    Author: Alvarez-Linera J, Martín P, Maestú F, Pulido P, Iglesias J, Serrano JM, Sola RG.
    Journal: Rev Neurol; ; 28(7):681-5. PubMed ID: 10363293.
    Abstract:
    INTRODUCTION AND OBJECTIVE: The objective of this study was to locate the rolandic area (pre- and post-central) by means of functional magnetic resonance imaging (FMRI) and define its correspondence on a Talairach map, whilst active and passive movements of the dominant hand were performed. MATERIAL AND METHODS: Ten healthy volunteers were found, 6 men and 4 women, of an average age of 26 years (range 22-33). Two appropriate tasks were designed: one involving active and one passive movement. The examination was carried out using a 1.5 Tesla (General Electric) MRI apparatus. An echo-sequence of planar echo-gradient (BOLD technique) was used, making sagittal and axial planes, parallel to the AC-PC line (anterior commissure-posterior commissure). Subsequently an anatomofunctional Talairach map was drawn for each subject, to include the information obtained on FMRI. RESULTS: In all subjects central activity was detected in the rolandic area during the tasks involving selected active and passive movements. Overlap was seen between the pre- and post-rolandic areas with both types of tasks. CONCLUSION: There is good correlation between the image obtained of motor-sensory activity in the rolandic zone and the Talairach anatomofunctional map.
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